in 2008, nbc news' richard engel the network's chief foreign correspondent, heads to afghanistan to report the story of soldiers based at restrepo. >> we didn't know what we were going to find. we went to the valley which at the time was the most dangerous place in afghanistan. so we knew we would see action, we would see combat. >> engel and his crew, producer madeline herringer, and cameraman redden edwards, land right in the middle of the action. the men of viper company are trying to clear the valley of taliban fighters. the crew is there to document the action. >> pretty much every day this outpost came under attack. and pretty much every time the soldiers went out there to do a patrol in the area, that patrol came under attack. >> while living with the men for weeks at a time, the crew experiences the harshness of the environment. >> the troops are out there for a year and a half. it's pretty tough. there's no showers, the food was pretty much all out of a plastic bag. so the living conditions were pretty bad. >> every conflict is different. in iraq, you're real danger was getting bl